dotnet / dotnet/perf-autofiling-issues

[Perf] Linux/x64: 1 Regression on 3/26/2026 3:05:03 PM +00:00

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arch-wasm arch-x64 branch-refs/heads/main kind-micro os-linux perf-regression untriaged
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Description

### Run Information

Name | Value
-- | --
Architecture | x64
OS | ubuntu 22.04
Queue | ViperUbuntu
Baseline | [a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b](https://github.com/dotnet/runtime/commit/a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b)
Compare | [487cc8c4a5776931d7d573444f2b6c08b65f1e27](https://github.com/dotnet/runtime/commit/487cc8c4a5776931d7d573444f2b6c08b65f1e27)
Diff | [Diff](https://github.com/dotnet/runtime/compare/a4bfa0d8a4fdc513c9a8d3dec57931c901e8ef2b...487cc8c4a5776931d7d573444f2b6c08b65f1e27)
Configs | CompilationMode:wasm, RunKind:micro, RuntimeType:coreclr

### Regressions in Benchstone.BenchF.FFT

Benchmark | Baseline | Test | Test/Base | Test Quality | Edge Detector | Baseline IR | Compare IR | IR Ratio
-- | -- | -- | -- | -- | -- | -- | -- | --
|

  • [Test - Duration of single invocation]()
  • 📝 - [Benchmark Source]()
  • [ADX - Test Multi Config Graph]()
| 5.30 secs | 5.69 secs | 1.07 | 0.29 | False | | |

[Test Report]()

### Repro
General Docs link: https://github.com/dotnet/performance/blob/main/docs/benchmarking-workflow-dotnet-runtime.md

```cmd
git clone https://github.com/dotnet/performance.git
python3 .\performance\scripts\benchmarks_ci.py -f net8.0 --filter 'Benchstone.BenchF.FFT*'
```

### Benchstone.BenchF.FFT.Test

#### ETL Files

#### Histogram

#### JIT Disasms

### Docs

[Profiling workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/profiling-workflow-dotnet-runtime.md)
[Benchmarking workflow for dotnet/runtime repository](https://github.com/dotnet/performance/blob/master/docs/benchmarking-workflow-dotnet-runtime.md)

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Assessment

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